Beside the fact that it has "not much" to do with Perl, your question is also too general (versions of PHP, Drupal and mySQL? what hardware? were certain patches applied? what is "relatively complex"? etc. etc.). The memory consumption depends on how the application is coded and how it is used. In my limited experience with PHP and mySQL they are not memory hungry at all. My experience with Drupal is less positive and I don't use it anymore. See measuring-memory-consumption-by-drupal-bootstrap-and-modules for ideas. I think you should post your question in a PHP/Drupal/mySQL forum, they can help you better.

Cheers

Harry


In reply to Re: OT: How much memory does a database-backed website use? by dHarry
in thread OT: How much memory does a database-backed website use? by Cody Fendant

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.